7.37. A GSS asked subjects their opinions about governmentspending on health and governmentspending on law enforcement. For each, should it increase, or should it decrease? Table 7.20 shows results.

(a) Find the sample proportion favoring increased spending, for each item.

(b) Test whether the population proportions arc equal. Report the P-valuc, and interpret.

(c) Construct a 95% confidence interval for the difference of proportions. Interpret.

TABLE 7.20 Health Law Enforcement Spending Spending Increase Decrease Increase 292 25 Decrease 14 9